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Finding the Fourth Proportional to 316,740.26, 436,935.84 and 195,842.90

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Solution

The fourth proportional to 316,740.26, 436,935.84 and 195,842.90 is: 270,160.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,740.26 : 436,935.84 = 195,842.90 : x
  2. Step 2: Convert to fraction form
    316,740.26/436,935.84 = 195,842.90/x
  3. Step 3: Cross multiply
    316,740.26x = 436,935.84 × 195,842.90
  4. Step 4: Simplify right side
    316,740.26x = 85,570,782,019.54
  5. Step 5: Solve for x
    x = 85,570,782,019.54/316,740.26
  6. Step 6: Final answer
    x = 270,160.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.